1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Potential triple integrals

  1. Nov 22, 2007 #1
    Does [itex]-Gm\rho2\pi\left(R_2^2-R_1^2\right)[/itex] make sense for the potential of a point-mass "m" inside a spherical shell of radii [itex]R_1< R_2[/itex] and density [itex]\rho[/itex]?

    Now I've already found the potential outside of a homogeneous sphere of same density. I'm now asked to use these two results to find the potential inside a homogeneous sphere of again indeity density sphere, using the previous two results.

    Can I do this by considering the point on the inside of the shell with a sphere in the space in the middle? Does it make sense to add the two potential formulas using the correct radii?
    Last edited: Nov 22, 2007
  2. jcsd
  3. Nov 22, 2007 #2


    User Avatar
    Homework Helper

    Expression for potential is GMm/R. So something is missing in the given expression
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook